Black 12V hardwired propane/LP gas alarm detector for RVs, with flush-mount installation, mute/reset function, and RV-rated propane safety monitoring.
The MTI Industry 30-442-P-BL Safe-T-Alert alarm detector is a 12V hardwired propane/LP gas detector designed for RV use. It monitors for propane gas and activates an audible alarm when gas levels reach an unsafe threshold.
This black flush-mount model is commonly used as a replacement for expired, damaged, or malfunctioning LP gas alarms in RVs. It is intended for installations where the existing detector is LP-only, powered by the RV’s 12V DC system, and installed into a recessed wall opening.
Because propane is heavier than air, LP gas detectors are typically installed low in the RV according to the manufacturer’s installation instructions. Always follow MTI’s placement, wiring, and testing instructions when replacing the detector.
Alerts occupants when dangerous propane gas levels are detected
Runs from the RV’s 12V DC electrical system
Designed for compatible recessed RV wall installations
Audible alarm output helps alert occupants to unsafe gas levels
MTI Industry 30-442-P-BL is a propane/LP gas alarm detector only. It does not detect carbon monoxide and should not be used to replace a combination CO/LP alarm detector. If the original alarm detects both CO and LP gas, use the correct combination replacement instead.
Disconnect 12V power before removing the old detector. Confirm the wall cutout and wiring match this flush-mount LP gas detector, then connect and mount the new alarm according to the included MTI instructions. After installation, test the detector using the test/reset button and confirm normal operation before using the RV.
Package Contents: • 1 MTI Industry / Safe-T-Alert 30-442-P-BL LP gas alarm detector • Mounting hardware/instructions as supplied by current manufacturer packaging NOT Included — May Also Need: • CO alarm or combination CO/LP alarm • Smoke alarm • Replacement wiring, connectors, fuse, or circuit repair parts • Trim ring or adapter plate unless supplied by current packaging • Propane system inspection or leak repair • Professional RV electrical service This listing is for the LP gas alarm detector only unless otherwise stated.
Before ordering, confirm the existing detector is an LP-only, 12V hardwired, flush-mount alarm. Compare the old detector’s case size, wall cutout, screw locations, wiring, color, and installation location. If replacing a different detector size, a trim ring, adapter plate, or wall repair may be needed.
If the alarm sounds or propane odor is detected, evacuate the RV immediately. Shut off propane if safe to do so, avoid flames, sparks, smoking, appliances, generators, electrical switches, and phones inside the RV, and have the propane system inspected before use. Do not ignore, disable, cover, paint, or relocate the alarm outside the manufacturer’s approved installation instructions.